Across
- 3. The movement of people from one place to another
- 4. Age a time when most of the earth is covered in ice
- 6. a large mass of ice covering land
- 8. the total number of people in an area
- 9. the time before written records
- 10. the study of human culture and behavior
- 11. the process of farming
- 12. Age a period of time where humans invented stone tools
Down
- 1. people who move from place to place with no permanent home
- 2. planting food and raising animals for ones own use
- 5. The use of science and engineering to improve life
- 7. people who hunt and gather to survive